This paper aims to bring light on the structure and implication of ``turning over a new leaf`` process of antagonists in Korean classical novels. Though redemption of antagonists in classical novels is represented as a device to enhance morality of novel texts, the concrete process of redemption is more complicated and realistic. The antagonists of Chanhseongamuirok, Hajinyangmunrok, Okrumong and Wanwolhoimangyeo are impressed by the strong impact of protagonists` moral authority rather than touched by their morality itself. The antagonists realize that they need to develop new capability focused on morality by experiencing the impact of moral authority of protagonists. It makes the antagonists to see new areas to go through to strengthen themselves, leading to expansion of perspective on self and others, which means ``turning a new leaf`` of their lives.